From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from lists.gentoo.org (pigeon.gentoo.org [208.92.234.80]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by finch.gentoo.org (Postfix) with ESMTPS id 88DDC158064 for ; Sun, 12 May 2024 02:26:17 +0000 (UTC) Received: from pigeon.gentoo.org (localhost [127.0.0.1]) by pigeon.gentoo.org (Postfix) with SMTP id 6270CE29E7; Sun, 12 May 2024 02:26:13 +0000 (UTC) Received: from smtp.gentoo.org (woodpecker.gentoo.org [140.211.166.183]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by pigeon.gentoo.org (Postfix) with ESMTPS id 0E4DDE29E0 for ; Sun, 12 May 2024 02:26:13 +0000 (UTC) From: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= To: gentoo-dev@lists.gentoo.org Cc: =?UTF-8?q?Micha=C5=82=20G=C3=B3rny?= Subject: [gentoo-dev] [PATCH] cargo.eclass: Optimize crate unpacking Date: Sun, 12 May 2024 04:26:03 +0200 Message-ID: <20240512022603.48576-1-mgorny@gentoo.org> X-Mailer: git-send-email 2.45.0 Precedence: bulk List-Post: List-Help: List-Unsubscribe: List-Subscribe: List-Id: Gentoo Linux mail X-BeenThere: gentoo-dev@lists.gentoo.org Reply-to: gentoo-dev@lists.gentoo.org X-Auto-Response-Suppress: DR, RN, NRN, OOF, AutoReply MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Archives-Salt: 36b56549-38c2-4b88-bb60-9cc0c47042a3 X-Archives-Hash: 0cb7ec6ff814cbf1eca1cf7fff72a372 Unpack crates in parallel using xargs to utilize multicore systems better. Perform checksumming via a single sha256sum invocation. For dev-python/watchfiles, this speeds up unpacking on my machine from 2.6 s to 0.75 s (warm cache). Signed-off-by: Michał Górny --- eclass/cargo.eclass | 56 ++++++++++++++++++++++++++------------------- 1 file changed, 33 insertions(+), 23 deletions(-) diff --git a/eclass/cargo.eclass b/eclass/cargo.eclass index 0f2da982f60c..5a16d3a30528 100644 --- a/eclass/cargo.eclass +++ b/eclass/cargo.eclass @@ -329,40 +329,50 @@ _cargo_gen_git_config() { cargo_src_unpack() { debug-print-function ${FUNCNAME} "$@" - mkdir -p "${ECARGO_VENDOR}" || die - mkdir -p "${S}" || die + mkdir -p "${ECARGO_VENDOR}" "${S}" || die local archive shasum pkg + local crates=() for archive in ${A}; do case "${archive}" in *.crate) - # when called by pkgdiff-mg, do not unpack crates - [[ ${PKGBUMPING} == ${PVR} ]] && continue - - ebegin "Loading ${archive} into Cargo registry" - tar -xf "${DISTDIR}"/${archive} -C "${ECARGO_VENDOR}/" || die - # generate sha256sum of the crate itself as cargo needs this - shasum=$(sha256sum "${DISTDIR}"/${archive} | cut -d ' ' -f 1) - pkg=$(basename ${archive} .crate) - cat <<- EOF > ${ECARGO_VENDOR}/${pkg}/.cargo-checksum.json - { - "package": "${shasum}", - "files": {} - } - EOF - # if this is our target package we need it in ${WORKDIR} too - # to make ${S} (and handle any revisions too) - if [[ ${P} == ${pkg}* ]]; then - tar -xf "${DISTDIR}"/${archive} -C "${WORKDIR}" || die - fi - eend $? + crates+=( "${archive}" ) ;; *) - unpack ${archive} + unpack "${archive}" ;; esac done + if [[ ${PKGBUMPING} != ${PVR} ]]; then + pushd "${DISTDIR}" >/dev/null || die + + ebegin "Unpacking crates" + printf '%s\0' "${crates[@]}" | + xargs -0 -P "$(makeopts_jobs)" -n 1 -- \ + tar -x -C "${ECARGO_VENDOR}" -f + assert + eend $? + + while read -d '' -r shasum archive; do + pkg=${archive%.crate} + cat <<- EOF > ${ECARGO_VENDOR}/${pkg}/.cargo-checksum.json || die + { + "package": "${shasum}", + "files": {} + } + EOF + + # if this is our target package we need it in ${WORKDIR} too + # to make ${S} (and handle any revisions too) + if [[ ${P} == ${pkg}* ]]; then + tar -xf "${archive}" -C "${WORKDIR}" || die + fi + done < <(sha256sum -z "${crates[@]}" || die) + + popd >/dev/null || die + fi + cargo_gen_config } -- 2.45.0